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Verdelite and Catapleiite Optical Properties


Catapleiite and Verdelite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
Strong: dark green yellow   
Not Available   

Dispersion
0.02   
22
Not Available   

Transparency
Transparent, Translucent   
TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)   

Refractive Index
1.614-1.666   
1.590-1.629   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Monoclinic Prismatic H-M Symbol (2/m) Space Group: B2/b (pseudo-HEX)   

Birefringence
0.014-0.040   
0.039   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Verdelite and Catapleiite Optic Character

Verdelite and Catapleiite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Verdelite and Catapleiite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Verdelite and Catapleiite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

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Verdelite and Catapleiite Transparency

Similar to their colors, Verdelite and Catapleiite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Verdelite is Translucent and Transparent while Verdelite is Translucent and Transparent in appearance.

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